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Page Title:
Chart 7-1. Troubleshooting Chart - Continued |
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 TM 5-6350-262-14/5
NAVELEX 0967-466-9050
TO 31S9-4-38-1
Chart 7-1. Troubleshooting Chart - Continued
Step
Procedure
Symptom
Probable Trouble
Corrective Action
Voltage high, replace module A7.
b. Defective audible alarm
a. Install module A8. Remove
module A8.
latched alarm module A10 and
check for less than 0.5 V dc
between pin J10-7 and
ground.
NOTE
Pin J10-1 is the bottom pin in the
right-hand row.
Voltage high, replace module A8.
c. Defective latched alarm
a. No voltage present in step a
module A10.
above, replace module A10.
5c
a. Meter still indicates 19 to 21 V
a. Defective voltage monitor
a. Remove audible alarm module A8
dc after jumper connection
module A7.
and check for 19 to 21 V dc
is broken.
between pin JS8-11 and ground.
NOTE
Pin J8-1 is the bottom pin in the right-hand
row.
Voltage low, replace module A7.
b. Defective audible alarm module
a. Install module A8. Remove
A8.
latched alarm module A10 and
check for 19 to 21 V dc
between pin J10-7 and ground.
NOTE
Pin J10-1 is the bottom pin in the
right-hand row.
Voltage low, replace module A8.
c. Defective latched alarm
a. Correct voltage obtained in
module A10.
step a above, replace
module A10.
6d
a. Meter indicates approximately 0.5
a. Defective voltage monitor
a. Replace module A7.
volt when operating mode switch
module A7.
is set to SECURE.
6e
a. Meter still indicates 19 to 21 V
a. Defective voltage monitor
a. Replace module A7.
dc when operating mode switch
module A7.
is set to SECURE.
6h
a. Meter still indicates 19 to
a. Defective voltage monitor
a. Replace module A7.
21 V dc when operating mode
module A7.
switch is set to SECURE.
7a
a. Meter indicates more than
a. Defective ac presence
a. Replace power supply.
2000 ohms.
pwb assembly.
7b
a. Meter still indicates less
a. Defective ac presence
a. Replace power supply.
than 2000 ohms, when fuse
pwb assembly.
F1 is removed.
7d
a. Meter indicates less than
a. Defective 4.5 to 6-
a. Replace module A8.
2000 ohms.
second timer or relay
A8K2.
7e
a. Meter indicates less than
a. Defective 4.5 to 6-
a. Replace module A8.
2000 ohms for more or less
second timer.
time than specified.
b. Meter indicates more than
a. Defective operating mode
a. Set operating mode switch to
100,000 ohms.
switch S3.
ACCESS. If meter indicates
less than 2000 ohms,
replace switch S3.
b. Defective 4.5 to 6-
b. Replace module A8.
second timer or relay
A8K2.
7-3
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